Has Facebook Consulted A Patent Attorney For Its Social Ads System?

I just heard a presentation from Facebook on its social ads system where you can use referrals from a customer as part of your ad to promote your business across a social network. I am no attorney but I am pretty sure that there are several companies who have applied for patents on this concept way before the VCs were talking non-stop about Facebook.

Note to all social local search 1.0 companies: Review your patent applications. You may have just struck gold.